Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Indo-European *kʷid

→ English why (mention)
→ Belarusian што (derived)
→ Bulgarian що (inherited)
→ Catalan que (inherited)
→ Corsican chè (inherited)
→ Czech co (inherited)
→ Czech kdo (mention)
→ Old Church Slavonic чьто (derived)
→ Old Church Slavonic къто (mention)
→ Welsh pa (inherited)
→ Lower Sorbian co (derived)
→ Fala que (inherited)
→ French que (inherited)
→ French quoi (derived)
→ Irish cad (inherited)
→ Scottish Gaelic ciod (inherited)
→ Ancient Greek οὐτιδανός (derived)
→ Manx quoid (inherited)
→ Indo-Portuguese que (derived)
→ Italian che (inherited)
→ Latin quid (derived)
→ Occitan que (inherited)
→ Polish co (inherited)
→ Polish kto (mention)
→ Polabian kåtü (mention)
→ Portuguese que (inherited)
→ Romanian ce (inherited)
→ Bourguignon quoi (derived)
→ Old Portuguese que (inherited)
→ Russian что (derived)
→ Rusyn што (inherited)
→ Sardinian chi (inherited)
→ Old Irish cid (inherited)
→ Serbo-Croatian ко (mention)
→ Serbo-Croatian ko (mention)
→ Serbo-Croatian kdo (mention)
→ Serbo-Croatian šta (mention)
→ Serbo-Croatian što (mention)
→ Serbo-Croatian шта (mention)
→ Serbo-Croatian што (inherited)
→ Serbo-Croatian tko (mention)